When you download a project, the extracted zip file will contain a folder for each model type within the project.
The following is an example of an exploded zip file of a project called holiday:
/holiday/
/connectors/
restConnector.json
/data-models/
hotel.json
/decision-tables/
auto-approve-extensions.json
auto-approve.xml
/files/
approval-policy.bin
approval-policy-extensions.json
/forms/
approval-form.json
/hxp-schemas/
reservation.json
/hxp-mixins/
reservable.json
/hxp-doc-types/
stay.json
/processes/
approve-extensions.json
approve.bpmn.xml
request-extensions.json
request.bpmn20.xml
/scripts/
update-calendar.bin
update-calendar-extensions.json
/triggers/
approval-email.json
/ui/
process.json
holiday.json